NEWARK, N.J. ( TheStreet) -- Leaders of the largest local chapter of the United pilots union are calling for the ouster of the airline's CEO Jeff Smisek.

"It's time to find a new CEO who understands how to run an airline, not just make excuses for his failures," said the top three officers of Local Executive Council 5, the Air Line Pilots Association chapter that represents New York and Newark-based United pilots, in a strongly worded letter to the local's 2,300 members.

The letter was sent April 25, the day after United reported that it lost $489 million excluding items in the first quarter, which produced record profits for both American and Delta , its two key rivals. A copy of the letter was provided to TheStreet.

"No one else has a greater financial stake in United Airlines than the collective stake of our pilots," the letter said. "Our careers should not be jeopardized by the worst senior management in the airline industry.

"We have absolutely zero confidence in the ability of present management to lead a turnaround," wrote LEC Chairman Glenn Johnson, Vice Chairman Mark Leneski and Secretary-Treasurer Tim Boyens.

The three listed United's faults, including these: It has "a disengaged and incompetent CEO is leading a terrible management team." Also, "a merger that should have been completed in three years or less remains incomplete after nearly four years (and) interdepartmental communication and cooperation are nearly nonexistent."

While PRASM has declined at United, it has increased at Delta and American. "Delta and American get the suits, we get the flip-flops and backpacks," the letter said.

"It is time to demand leadership that is actively engaged in employee morale, operational excellence, and service quality, which will always drive revenue far higher," the letter said. "United should be the industry leading airline. That will never happen under present management.

The three local leaders said they are "developing sound strategies that use all available resources to combat the feckless and ineffective managers" who lead the company.

Commenting on the first-quarter performance , the three noted that "by now, those of us paying attention have grown accustomed to UAL underperforming the rest of the industry.

"United should be the industry leader, with the largest population and origin/destination traffic demand in our hubs and as the largest airline across both the Atlantic and the Pacific," they wrote. "Instead, we are always the laggard. As in past quarterly updates, we once again hear excuses as to why United is unable to perform while we watch all of our competitors earn high and record profits."